The Chain Guns...

[Asymptotic]

Regardless of size, I find the solaris is completely balanced while its range makes it effective at getting the first shot in. It allows a period of time where you can hit your opponent but he can't hit you - that's critical when you're dogfighting at 1.1k away from each other. Get a few hits in, retreat, get a few hits in, retreat, etc... I think that it is not overpowered, but it is extremely good in the correct hands (just like plasma weapons and mini razors are good in the correct hands as well)